Double-acting pump



(No Model. 2 Sheets-Sheet 1.

J. M. CLARK DOUBLE ACTING PUMP. No. 432,373. Patented July 15, 1890.

w um

INVENTOI? 17 A TTOHNEYS .(No Model.) 2 sheets shbet 2.

.J. M. CLARK. DOU-BLE ACTING PUMP. No. 432,373. Patented J'1 11yl5,1890.

W/TNESSE INVENTORY- "&.d80n% By g A TTOHNEYS UNITED STATES PATENTOFFICE.

JOSEPH M. CLARK, or OOLFAX, WASHINGTON.

DOUBLE-ACTING PUMP.

SPECIFICATION forming part of Letters Patent No. 432,373, dated July 15,1890.

Application filed March '7, 1890. Serial No. 342,980. (No model.)

To all whom it may concern:

Be it known that I,- JOSEPH M. CLARK, of Colfax, in the county ofWhitman and State of Washington, have invented a new and ImprovedDouble-Acting Pump, of which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improved pump whichis simple and durable in construction, very elfective, and double-actingin operation, and not liable to get out'of order easily.

The invention consists of certain parts and details and combinations ofthe same, as will be hereinafter fully described, and then pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of the improvement. Fig. 2 is asectional plan view of the same on the line as so of Fig. 1. Fig. 3 is alike view of the same on the line ug of Fig. 1. Fig. 4 is a transversesection of part of the improvement on the line '2 z of Fig. 1, and Fig.5 is a sectional side elevation of the device for letting out the waterto prevent freezing.

The improved pump A is provided with a U-shaped barrel 13, preferablymade in three parts, of which the parts B and B are L- shaped and screwon the middle part B as is plainly shown in Fig. 1. From the middle partB of the pump-barrel extends upward an offset-pipe O, bent at its upperend to form the outlet-spout C, in the usual manner, and supported nearits upper end on a suitable bracket 0 resting on the floor or ground onwhich the pump is used. From the horizontal parts of the barrel parts Band B extend downward the inlet-pipes D and D, respectively, provided attheir lower ends with suitable valves E and E, respectively, openinginward and self-closing. Valves F and F are also held in thehorizontalparts of the barrel parts B and B the said valves open ing inward intothe middle part B and being also self-closing.

In the vertical parts of the pump-barrel parts B and B are held to slideplungers G and G, respectively, provided with plungerrods H and II,respectively, pivotally connected with the outer ends of a balance-leverI, fulcrumed in its middle on two journals J, projecting from a block Jheld on the discharge-pipe O, and secured in place on the latter byclamping-bars J engaging the block J and pressed in contact with thedischargepipe 0 by nuts J screwing on the inner threaded parts of thejournals J. (See Fig.

4:.) By loosening the nuts J the block J and the clamping-bars J withthe lever I, can be readily shifted on the discharge-pipe C to bring thesaid balance-lever to the proper place, after which the nuts J 4 arescrewing up to secure the block J 2 in the proper position.

The ends of the balance-lever J are connected by links K and K with thesecond balance-lever L, fulcrumed on journals N of a clamping device N,similar to the clamping device J above referred to, and also held nearthe upper end of the discharge-pipe C. The balance-lever L is providedat one end with a handle L, to be taken hold of by the operator whenoperating the machine.

On the discharge-pipe O are held two collars O and O, of which theformer is located at or near the'surfaoe of the ground or platform,while the other is located near the lower end of the pipe G. In the twocollars O and O is mounted to turn arod P, provided on its upper endwith a handle P and hollow at its lower end, as shown in Fig. 5. Theextreme end of the hollow rod P is fitted to turn in an offset Q, formedon the pipe 0., and provided with an inwardly-extending opening Q,leadingto the interior of thepipe G. The opening Q is adapted toregister with an opening P formed in the hollow end of the rod P, sothat when the two openings Q and P register water contained in the pipe0 above the offset Q can flow out through the openings Q and P and thehollow end of the rod P, so as to prevent freezing of the water in thepipe 0, during cold weather. Ordinarily the openings P and Q do notregister.

to the barrel parts 13 and 13 and on the downward stroke of therespective plunger the valve E or E, respectively, is closed, while thevalve F or F, respectively, opened, and the water is forced to themiddle part B of: the barrel, and from the latter through theoutlet-pipe (J and the spout Uto a receptacle held under the said spout.

It will be seen that as one plunger is moving downward the other movesupward, so that a continuous stream of water is forced up through theoutlet-pipe C. It will be fur ther seen that the barrel B can be easilytaken apart in order to get atthe valves and to clean the said barrelwhenever necessary.

The levers I and L can be readily adjusted on the outlct-pipe C, so asto bring the links K and K, the plungenrods It and II, and the plung'ers G and G in proper position relative to the barrel 1;.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. In a double-acting pump, the combination,with the vertical discharge-pipe, the U- shaped barrel, the valves, andthe pistons, of an upper and alower horizontal lever, both havingcentral openings between their ends to receive the discharge-pipe, upperand lower blocks sliding on the said pipe and having journals on whichthe sides otthe open parts of said levers are mounted, and verticallyextending elamping-bars at opposite sides 0t said bloclcs and bearing attheir ends on the discharge-pipe, nuts on the trunnions within the openparts of the lovers to clamp the block in place, connections between theends of the lower lever, and the pistons and rods connecting said twolevers, substantially as set forth.

2. The combination, with an apertured block J having journals ortrunnions J on its opposite faces, screw-threaded at their innerportions, of opposite bars J J of greater length than the block, mountedon the inner ends of the trunnions and recessed to fit on the block andproject at their ends inwardly to the bore or aperture, and nuts on thetrunnions bearing on the outer faces of the bars, substantially as setforth.

8. In a doul'ile-aeting pump, the combination, with the discharge-pipe,of a block having journals held to slide on the said disc11arge-pi1 )e,clamping bars fitted on the said block and adapted to engage the saidoutletpipe, and nuts screwing on the said journals against the saidelamping-bars to press the latter in contact with the said outlet-pipe,substantially as shown and described.

JOSEPH M. CLARK.

itnosses:

F. B. Nomox, G. W1 LASELL.

